When you use getline(input,inputline) and you delete part of the inputline does it also ignore from the input file?

Not sure what you mean. Maybe an example would help

the contents of the input file will not change.

you have read information from the input file.
changing the information you read will not then change the information back in the input file.

Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.